1 Preface

With the acceleration of people's pace of life, social life is developing in a convenient and sanitary way.  To meet this demand, disposable foam plastic lunch boxes, plastic bags and so on began to frequently into People's Daily life.  The emergence of these convenient and cheap bag materials has brought a lot of convenience to people's life.  But on the other hand, these packaging materials are often discarded after use, resulting in "white pollution", which has become a huge environmental problem. 

Today, every country has staged a series of policy to control "white pollution", for this, we in the implementation of national policies at the same time, in order to fundamentally alleviate the harm of "white pollution" caused by, do the "environmental protection shopping bag" promotion plan, hope can do for the environment we rely on to do the contribution of environmental protection shopping bag promotion scheme and copywriting.  

2.what is environmental protection plastic bag

Environmental protection plastic bags are all kinds of biodegradable plastic bags for short, with the development of science and technology, all kinds of materials can replace the traditional PE plastic appear, including PLA, PHAs, PBA, PBS and other polymer materials.  Can replace the traditional PE plastic bags.  Environmental protection plastic bags have been widely used: supermarket shopping bags, even roll fresh bags, plastic film and other large-scale application examples in China.  

（1）Basic introduction

The ban, which took effect on June 1, 2008, stipulates that shopping malls, supermarkets and markets should not provide free plastic shopping bags and that plastic bags less than 0.025 mm thick are banned.  The implementation of "plastic limit order" has achieved certain results, to a certain extent, to promote the development of environmental protection plastic bag industry. 

Environmental protection plastic bags refer to:

In line with the national standard GB/T21661-2008 plastic bags are called environmental protection plastic bags, environmental protection plastic bags include recycled plastic bags and new plastic bags.  In the process of producing plastic bags, the plastic bags with degradation master materials are called degradable plastic bags. After 90 days of degradation, the plastic bags can be decomposed automatically under certain conditions.  Plastic film as raw materials for the production of bags collectively referred to as plastic bags, we commonly used plastic bags are: convenient bags, supermarket bags, handbags, flat bags, plastic bags, horse entrain and industrial packaging bags

 A plastic bag that melts quickly when exposed to sunlight and moistened.  By the national environmental protection product quality supervision and inspection center of the test, all the indicators of the product reached or exceeded the national quality standards, with health, non-toxic, pollution-free and other characteristics, is one of the most advanced environmental protection products.  This kind of degradable plastic bag is made of non-toxic polyolefin resin and adding degradating agent.  Its appearance has brought hope for reducing or eliminating white pollution.  

 Plastic bags that can be recycled twice after use

（2）The origin of plastic bags

Plastic bags were first invented by a European factory owner in 1902.  Because it is easy to use and cheap, it is almost everywhere.  Since the birth of plastic bags, they are destined to be "disposable" consumables.  

3.Composition

Generally speaking, there is no completely environmental protection of plastic bags, only some plastic bags after adding some ingredients, easy to degrade some.  Biodegradable plastics.  In the production process of plastic packaging products adding a certain amount of additives (such as starch, modified starch or other cellulose, photosensitizer, biodegradant, etc.), the stability of plastic packaging products decreased, easier to degrade in the natural environment.  Beijing area has 19 research and development or production of degradable plastics units.  Tests show that most degradable plastics begin to thin, lose weight, lose strength and gradually break into pieces after 3 months of exposure in general environment.  If the debris is buried in garbage or soil, the degradation effect is not obvious.  The use of degradable plastic has four shortcomings: one is to consume more food;  Second, the use of degradable plastic products can not completely eliminate "visual pollution";  Third, due to technical reasons, the use of degradable plastic products can not completely solve the "potential harm" to the environment;  Fourthly, degradable plastics are difficult to recycle because of special additives.  

In fact, the most environmentally friendly, is not plastic bags or fixed plastic bag use, reduce the amount of consumption, and can be recycled by the government, can reduce environmental pollution.  

4.decomposition time

Today's environmentally friendly versions decompose relatively quickly, possibly within a year.  There are also faster, Olympic environmental protection plastic bags after 72 days can decompose.  

5.The advantages of environmental protection plastic bags

  1, environmental protection plastic bags can be completely dissolved in water, non-toxic and pollution-free, and can be designed according to the use of water dissolution speed;  

   2, high transparency, high softness, good luster, good touch;  

   3. Environmental protection plastic bags have excellent antistatic performance and do not vacuum.  

   4, environmental protection plastic bags can usually be water, air, sunlight and biodegradation in about a month.  Which breaks down into harmless substances  

   5, environmental protection plastic bag permeability coefficient is low, good air resistance;  

   6, environmental protection plastic bag can add plastic buckle or self-adhesive bag;  

   7, environmental protection plastic bag oil resistance, solvent resistance is good, can be heat sealing, printing;  

   8, strong tensile, good tension;  

6. the development prospect of environmental protection plastic bags

With the increasingly stringent environmental protection standards and the promulgate of various environmental protection policies, in the future, environmental protection plastic bags have a great development prospect.  In today's society, people have a certain degree of awareness of green and environmental protection, plastic bags will gradually withdraw from the packaging market, replaced by reusable environmentally friendly shopping bags.  Compared with plastic bags, eco-friendly shopping bags are easier to print patterns and have more vivid color expression.  In addition, it can be used repeatedly, because the loss rate of repeated use is lower than that of plastic bags, leading to non-woven shopping bags instead of more cost saving, and bring more obvious advertising benefits.  Design novel and fashionable environmental protection bag, leading an environmental protection fashion wind.